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SAE-AISI S5 Steel vs. SAE-AISI 8615 Steel

Both SAE-AISI S5 steel and SAE-AISI 8615 steel are iron alloys. They have a very high 97% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI S5 steel and the bottom bar is SAE-AISI 8615 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
73
Tensile Strength: Ultimate (UTS), MPa 680 to 1940
480

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 42
39
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 3.1
2.6
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.1
1.5
Embodied Energy, MJ/kg 29
20
Embodied Water, L/kg 51
50

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25 to 70
17
Strength to Weight: Bending, points 22 to 45
17
Thermal Diffusivity, mm2/s 11
10
Thermal Shock Resistance, points 23 to 65
14

Alloy Composition

Carbon (C), % 0.5 to 0.65
0.13 to 0.18
Chromium (Cr), % 0 to 0.5
0.4 to 0.6
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 93.6 to 97
96.9 to 98.1
Manganese (Mn), % 0.6 to 1.0
0.7 to 0.9
Molybdenum (Mo), % 0.2 to 1.4
0.15 to 0.25
Nickel (Ni), % 0
0.4 to 0.7
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 1.8 to 2.3
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.040
Vanadium (V), % 0 to 0.35
0